I can strongly recommend the critical view on social media, modern communication and effects on enterprise 2.0 by Sean McGuire, a colleague of mine. Nice conclusion, I fully support the majority of the arguments – keeping on discussing face to face;) The full blog post can be found here http://desireit.wordpress.com/2013/01/22/the-paradox-of-social-media-is-that-social-media-is-so-attractive-precisely-because-it-is-the-least-social-form-of-communication-human-beings-have-ever-invented/